EP 2645130 A2 20131002 - Self-heating electrometer for high pressure ion chamber for verification of temperature compensation
Title (en)
Self-heating electrometer for high pressure ion chamber for verification of temperature compensation
Title (de)
Selbstheizendes Elektrometer für Hochdruckionenkammer zur Überprüfung der Temperaturkompensation
Title (fr)
Électromètre autochauffant pour chambre d'ions à haute pression pour vérification de compensation de température
Publication
Application
Priority
US 201213433433 A 20120329
Abstract (en)
An apparatus and method for verifying the temperature compensation correction factor accuracy of an electrometer 56 is provided. The electrometer 56 includes an electrical amplifier 72 to convert a current signal to a voltage signal. The electrometer 56 also includes a compensation circuit 76 to modify the voltage signal for temperature compensation. The electrometer 56 further includes a heat producing device 98 to induce a temperature change of the electrical amplifier 72 and the compensation circuit 76. An environmental radiation monitor 10 is also provided. The method includes providing an environmental radiation monitor 10, measuring the voltage signal at a first time, activating a heat producing device 98, measuring the voltage signal at a second time, and comparing the two measured values of the voltage signal.
IPC 8 full level
G01T 1/185 (2006.01); G01R 19/32 (2006.01)
CPC (source: EP KR US)
G01R 15/00 (2013.01 - KR); G01R 19/00 (2013.01 - KR); G01R 19/0023 (2013.01 - EP US); G01R 19/0061 (2013.01 - EP US); G01R 19/32 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2645130 A2 20131002; CN 103364607 A 20131023; JP 2013205416 A 20131007; KR 20130111463 A 20131010; US 2013256550 A1 20131003; US 9024618 B2 20150505
DOCDB simple family (application)
EP 13160717 A 20130322; CN 201310103394 A 20130328; JP 2013061245 A 20130325; KR 20130034846 A 20130329; US 201213433433 A 20120329